Oceans: Add the beauty and sparkle of the Tropics to your wardrobe with our Oceans line of created Opal ball stud earrings. Some say that these gorgeous gemstones remind them of the sparkling blue waters of the Caribbean; others say they remind them of what Earth looks like from outer space. No matter what they remind you of, they're a gorgeous addition to any jewelry collection and make an ideal gift for those with an October birth date.Many people are not aware that created Opal is actually preferred to natural opal for most jewelry items. Natural Opal is not particularly well-suited to being used in jewelry since it's a relatively soft gemstone, is subject to chipping and breakage, requires regular care and maintenance, and has to be protected from sunlight and many chemicals and contaminants such as hair spray, perfumes and the like. That's why much of the jewelry made with natural Opal are actually created doublets and triplets (Opal mounted to a resin base and then clear-coated to protect it).